During his 30 years as host of the Tonight Show , Johnny Carson welcomed hundreds of guests, but one in particular led to death threats, RadarOnline.com can reveal.

Carson and his crew were left terrified after the iconic TV star welcomed Stanford professor Paul R. Ehrlich, the writer behind the 1968 book The Population Bomb , which warned readers of the brutal effects of overpopulation. Article continues below advertisement

Carson Received Death Threats Over Guest Tap Here To Add Radar Online as A Trusted Source

Despite the backlash the book received, Carson was "fascinated" by the content, according to Mark Malkoff's new book, Love Johnny Carson : One Obsessive Fan's Journey to Find the Genius Behind the Legend . In fact, Carson was so much about the controve

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